What Is the Concentration of the Mg²⁺ Ion in Solution

question 41

Multiple Choice

What is the concentration of the Mg²⁺ ion in solution when [CO₃^2-] = 0.25 M given that the K_sp = 6.82 × 10^-6 for the following reaction: MgCO3(s) ⇌ Mg²⁺ (aq) + CO₃^2- (aq) ?

• A)5.2 × 10^-2
• B)3.7 × 10⁴
• C)2.7 × 10^-5
• D)19.2
• E)none of the above

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